Yuan Ling falls helplessly in love with Qing Chen and is unable to hide it. She however, is firm to draw the line. Yuan Ling investigates Qing Chen's past in search for clues of who she is and why she is absent from everyone's memories.

Qing Chen disguises as the Feng families missing daughter for her investigation. Meanwhile, princess of the A-Chai Tribe has her eyes set on Yuan Ling and wishes to marry him.

Qing Chen claims to be Minister Feng's daughter to uncover the truth of the empresses death and reinstate meandering skies. The emperor calls for Qing Chen and she wins his trust through careful preparation and studies of scriptures.